Rolls for rolling girder-rails



(No Model.) 3 Sheets-Sheet 1.4

T. L. BEAMAN.

ROLLS FOR ROLLING GIRDER RAILS.

No. 347,283. Patented Aug. 10, 1886.

INVENTOR ATTORNEY (N0 M0de I.) 3 Sheets-Sheet 2.. T'. L. BEAMAN.

RoLLs FOR ROLLING GIRDER RAILS.

No. 347,283. Patented Aug. 10, 1886.

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WITNESSES:

ATTORNEY INVENTOR 3 Sheefs-Sheet 3.

T. L. BEAMAN.

ROLLS FOR ROLLING GIRDER RAILS.

(No Model.)

INVENTOR M t L,

WITNESSES: w; I M74, v g

ATTORNEY PATENT OFFICE.

' .QT-IMQTHY 'L. BEANTAN, OF KnoXvILLE, TENNESSEE.

ao LLs FOR ROLLING GlRD-ER-RAILS.

SPECIPJiQATION forming part of Letters Patent No.'347.283, dated August10,1886.

Application filed November 20,1885. Serial Nail-53,398. (N'o model Toalll whom itinay'conoern:

Be it known that I, TIMOTHY L. BEAMAN, of Knoxville, in the county ofKnox and State of Tennessee, have invented certain new and usefulImprovements in Rolls for Rolling Girder-Rails, which invention is fullyset forth and illustrated in the following specification andaccompanying drawings.

This invention has for its object the rolling of girder-rails; and itconsists in a novel construction of the rolls and their passes, orcertain of them, whereby the flanges of the rail on opposite sides ofits web may be hollowed, substantially as hereinafter described.

The invention also consists in a special configuration of a primaryroughing-pass, whereby a less number of subsequent roughing-passes toprepare the bloom or ingot for the finishing rolls will sufilce.

The invention is applicable to girder-rails made of either steel oriron, and it is not restricted to any particular form of foot or to arail provided with a foot.

A conspicuous feature of the invention is that in the finishing pass orpasses [it provides for the web of the rail passing at an oblique anglebetween the rolls relatively to the axes of the rolls and the flangedhead or portion of the rail oblique to a plane intersecting the axesofthe rolls at right angles.

In the accompanying drawings, Figures 1, 2. 3, and 4. represent sideviews of different portions or sections of a set of roughing-rolls,showing a series of consecutive passes for breaking down the bloom oringotinto a shape ready for the finishing-rolls. are side views ofdifferent forms or modifications of the passes in the finishing-rolls,and Fig. 7 a .fnrther modification of the same. Fig. 8 is a side view,upon a larger scale, of a portion of the finishing-rolls, showing thefinal pass and shape of a flanged girder-rail capable'of being producedby it.

In said figures the respective dicated by letters as follows:

A B indicate a portion of a pair of rough ing-rolls, showing fou rdiflerent PHSSGSfBS seen in Figs. 1, 2, 3, and 4; but the invention isnot restricted to any number of passes, either in said roughing orsubsequent finishing rolls,

parts are inand,so far as the roughing-rolls are concerned,

the main or only novelty consists in the shape Figs. 5 and 6' of theprimary pass (shown injFig. 1) to break Fig. 1; but no claim is made tothe diagonalintroduction of the bloom irrespective of the shape of theprimary pass, which is here represented as having a contour formed by astraight line, a, parallel with the axes of the rolls, the oppositereverse-sloping side portions, 1) 1), straight portions-c c, transverseto the axes of the rolls, concave portions d d, and wedge-shapedportions ee. This configuration of the primary roughing-pass shapes thediagonally-introduced square ingot C, Fig. 1. into a bloom, O, of theshape shown in said figure, corresponding to the shape of the primarypass. Thisshape advances the condition of the bloom or ingot to anextent that it would take several passes to do in the roughing-rollsheretofore used, and by means of this primary pass the number ofsubsequent roughing-passes may be greatly reduced. Thus the rolled bloomC, as it emerges from the pass shown in Fig. 1, is inserted in thesecond pass. Fig.2, and rolled into the form as indicated for it by C".It is then inserted in the third pass, Fig. 3, and its shape made toassume the form shown by C, after which it is entered in the fourthpass, Fig. 4, and its shape further changed, as mark ed 0. In each ofthese figures the parts shown by full lines in cross-section show theproduct as it emerges from the several passes, respectively,consecutively, and the dotted lines the product in the shapes the sameis introduced to the passes. The part1 y-iormed rail is thentransferred'to the finishing-rolls D E, to form the finished girder-railR, (shown in Fig. 8,) which conforms to the shape of the final pass S'iuFigs. 5, 6, and S, and also under a reversed position in Fig. 7, and inwhich the web f of the rail has side flanges, g 9', Fig. 8, the one g ofwhich is made to present a hollow, h, on its upper side, and the otherflange a corresponding hollowspace, h, on its under side, regardless ofthe shape of the foot iof the rail, which foot might either be of ovalor other shape, or be altogether dispensed with by extending the webdownward. To make the flange or flanges of the rail thus hollow, insteadof presenting straight lines, as shown by dotted lines w w in Fig. 8,whereby 2 arms:

, ing said rolls with passes, and in particular with a final pass, as S,more or less varied to shape the rail to the form of its flanged head,

as may be desired, but so turned in saidrolls.

The portion of the final pass which receives the web f of the rail shallbeat an angle of twenty-five degrees.(more or'less) to the axes of therolls, of which 7c indicates the partingline, and so that the portion ofthe pass which receives the flanged portions 9 g of the head of the railshall be at .acorresponding angle,or thereabout, to a plane intersectingthe axes of the rolls at right angles. This oblique construction of. thefinal pass will cause much more than onehalf-say twothirds-of the railto lie in the one roll, instead of being equally divided between the two'rolls, as in the ordinary construction of rolls for makinggirder-rails, in which the web portion of the passis horizontal orparallel with the axes of the rolls, and the portion which receives theflanged head in a plane at right angles to the axes of the rolls. Thisoblique construction of the final .pass, and consequent unequaldistribution of metal in the two rolls,

facilitates the drawing out of the foot and head flanges of the rail,and by the inclination thus given to the rail a perfectly adequateclearance is secured for the upper side I of the flange g, and the underside of the flange made to present hollows or recesses h h, as shown,instead of being filled in, as indicated by the lines 10 10, Fig.S,which straight surfaces,in rolls of the ordinary construction, saidflanges could only be given. The hollow shown at h in the flange 9 maysometimes be dispensed with to advantage, as custom in many casesprescribes a flat or straight flange for this portion of the rail.

Three different modifications of the finishing-rolls I) E are shown inFigs. 5, 6, and 7, and these may either be used separately orcollectively; but the final pass S in each is the several preparatory orreducing passes S,

from left to right, are all arranged to successively act upon theroughed-out bloom or partly-formed rail on the horizontal-that is,

. with the web of the rail parallel with the is different. As the railemerges from the last of these horizontal passes, it is 'nearly of theshape shown in Fig. 8, but with the flanges gg filled in, .as indicatedby the lines w 10. Upon turning the rail, however, once more half aroundand passing it through the oblique pass S it assumes the finishedconstruction shown for it by full and cross lines in Fig. 8.

In Fig. 6 the finishing-rolls D E are only shown with one horizontal orfirst preparatory pass S. to the left, and the other passes Sintervening between it and the final pass S,

made gradually and successively inclining to prepare the rail for thefinal pass S, of maximuinobliquity. In these rolls the respectivepositions of the rail are not changed in the passes-that is, the rail isnot reversed.

In Fig. 7 the finishing-rolls D E have their several preparatory orreducing passes S all set at the same inclination as the final pass S,and the rail is reversed for each succeediubefore observed, the'footportion may be.

changed or dispensed with. I

Having thus fully described my said improvements, as of my invention Iclaim- 1. A set of finishingrolls for rolling girderrails, provided witha final pass constructed to receive the web of the rail obliquely to theaxes 0t therolls, and the flanged head of I the rail obliquely to aplane intersecting the axes of the rolls at right angles, whilesubjecting the whole surface of the rail to draft or elongation,substantially as and for the purposes set forth..

2. A set of roughing-rolls, as A B, provided with a primary passsubstantially of the conformation shown in Fig. 1, substantially as andfor the purposes set forth.

3. A set of rolls for rolling girder-rails, provided with one or morepasses constructed to form opposite-stepped flange-head portions ma, anda web portion, u, in oblique relation to theaxes of the rolls and toplanes intersecting the said axes, while subjecting the whole contour ofthe rail to the draft of the polls, substantially as and forthe-purposes set orth.

TIMOTHY L. BEAMAN.

\Vitnesses:

" J. Y. JOHNSTON,

D. E. LOWRY.

It is hereby certified that Letters Patent No. 347,283, granted August10, 1886, upon the application of Timothy L. Beaman, of Knoxville,Tennessee, was erroneousiy issued to said Beaman; that said LettersPatent should have beenissued to the Johnson Steel Street RailO'ompany,of Louisville, Kentucky, as assignee; and that the said Letters Patentshould be read with this correction therein that the same may conform tothe record of the case in the Patent Office. v

Signed, countersigned, and sealed this 31st day of August, A. D. 1886'.

[SEAL] H. L. MULDROW,

Acting Secretary of the Interior. Oouritersigned R. B. VANoE,

Acting Commissioner of Patents.

